20124130 has 32 divisors (see below), whose sum is σ = 39219264. Its totient is φ = 7390656.

The previous prime is 20124127. The next prime is 20124179. The reversal of 20124130 is 3142102.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 20124130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36517 + ... + 37063.

It is an arithmetic number, because the mean of its divisors is an integer number (1225602).

Almost surely, 2^20124130 is an apocalyptic number.

20124130 is a deficient number, since it is larger than the sum of its proper divisors (19095134).

20124130 is a wasteful number, since it uses less digits than its factorization.

20124130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20124130 is about 4485.9926437746. The cubic root of 20124130 is about 272.0021716234.

Adding to 20124130 its reverse (3142102), we get a palindrome (23266232).

The spelling of 20124130 in words is "twenty million, one hundred twenty-four thousand, one hundred thirty".